The IG Farben Building, also known as the Poelzig Building and Abrams Building, formerly informally called The Pentagon of Europe, is a building complex in Frankfurt, Germany, which currently serves as the main building of the West End Campus of the University of Frankfurt. It was built from 1928 to 1930 as the corporate headquarters of the IG Farben conglomerate, then the world's largest chemical company and the world's fourth-largest company overall.
The building's original design in the modernist New Objectivity style was the subject of a competition which was eventually won by the architect Hans Poelzig. On its completion, the complex was the largest office building in Europe and remained so until the 1950s. The IG Farben Building's six square wings retain a modern, spare elegance, despite its mammoth size.
Coordinates 50°7'31.671" N 8°40'2.882" E